What is Waterfall Model

Waterfall Model is set of rules that are developer have to follow to create a quality product. It is a very oldest model which we used to develop a software.

It is also a linear sequential life cycle model. This model is a very simple & easy to use.  It begins at the top of the waterfall with requirement & flows down the waterfall through various stages finishing with implementation in the living environment.

Waterfall Model

This is a systematical engineering approach for organizing & managing a software project.

Waterfall Model

Advantage :

  • Simple & easy to use
  • Easy to use
  • Phase is completed at time
  • Use for small project

Disadvantage : 

  • Can not use for complex project
  • Can not use if requirement changing
  • Not useful for long and ongoing projects
  • Not useful for Software Testing

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